Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,553 days
From Tuesday, December 17, 1619 to Monday, September 7, 2026.
Monday–Friday weekdays106,109
Weeks and days21,221w 6d
Calendar span406 years, 8 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.